High-Accident Spot-Improvement Program
As a result of an extensive before and after accident study, the high-accident location program, was found to have significantly decreased the number of motor vehicle accidents. Favorable...

Forecasts and the Role of Alternative Futures
A review of previous water resource forecasts by the Kerr Commission, the Water Resources Council, and the USGS is presented. Comparison among them indicate widely ranging figures depending...

Designing to Reduce Construction Costs
This paper describes interrelationships between engineering design, construction, and operation costs for a facility, and shows how the level of influence over those costs decreases precipitously...

The CRT Computer-Graphics Terminal: Indispensible Design-Aid for Some Structural Engineers
Putting the benefits of computer graphics within the cost reach of many consulting firms are: the development of low-cost ($3,000 to $10,000) storage-tube CRT graphics terminals; and the...

Pneumatic Sinusoidal Loading System
This technical note reviews some of the current systems in use for the application of cyclic loads to soil specimens and then describes a novel relatively low-cost system developed at...

Stress-Strain Characteristics of Sand
During the past decade, increasing interest has been shown in the development of a satisfactory formulation of a stress-strain relationship for engineering soils that incorporates a concise...

Measuring Transportation System Performance
Quantitative measures of several aspects of urban transportation system performance which are difficult to incorporate in a cost-benefit analysis are presented. Two major types of evaluations...

Economic Analysis of Residential Land-Use Alternatives
To establish optimum land-use policies, it is important that local planners understand the economic implications of various land-use alternatives. Data were collected for two alternative...

Dynamic Stiffness of Circular Foundations
A series of parametric studies have been presented investigating the effects of internal soil damping, Poisson's ratio, layer depth, and embedment on the stiffness functions...

Reinforced Earth Bridges Highway Sinkhole
Faced with an unusual sinkhole condition, the Pennsylvania Department of Transportation decided to utilize a two-way reinforced earth slab in conjunction with a subsurface grouting program...

Economic Design of Low Pressure Air Piping Systems
With the aid of marginal economic optimization theory and headloss approximation equations for low pressure air systems, an economic design technique is presented for wastewater treatment...

Costs and Benefits Relating to Paper Mill Waste Water Treatment
This paper deals with the hypothesis that, in many cases, internal costs to the organization expended on capital equipment for waste treatment may be economically justifiable when external...

Report Relating the Impact of Mobile Homes on Urban Plans and Housing Systems
Mobile homes annually constitute a greater proportion of low-cost housing. The industry is gradually overcoming the early blemished image of mobile homes, and also the more recent concept...

Analytical Approach to Railway Signal Block Design
Originally intended for rapid transit systems, it is also applicable to any rail system where high-speed, short-headway characteristics are required to maintain a smooth and efficient...

Costs and Benefits of Reducing Bicyclists' Exposure to Roadside Air Pollution

Rectangular Loads on Inhomogeneous Elastic Soil
As the degree of inhomogeneity of a soil increases, there is a decrease in the effect of loads at some distance from the point at which settlement is measured. However, with an increase...

Influence Surfaces for Curved Multibeam Bridges
The problem of the static analysis of simple supported, fan-shaped, multibeam bridges is reformulated by the Fourier's series method for the purpose of introducing certain...

Benefit-Cost Analysis of Delay Reduction with STOL
The question of whether, and where, to invest in STOL fleets is examined by means of a heuristic model reflecting a possible investment process. Results of applying the computer model...

Full Compensation and Transportation Corridor Analysis
In urban highway building both aggregate accounts and disaggregate accounts must be kept. These are sometimes called users and nonusers accounts. All accounts should show a net gain if...

Helicopter Emergency Medical Care Delivery Systems
Through the use of simulation techniques, estimates were prepared of the costs and benefits associated with utilizing helicopters for transferring rural emergency medical cases in the...

 

 

 

 

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